I really wish they would invest in a resort similar to Hotel Breakers at CP. However, it probably won't happen any time soon.
I would love to know what the occupancy percentages are during the summer at Great Wolf & the hotels surrounding. They could be holding out on it until most places reach a occupancy % they know they could benefit from. If you have no idea what I am talking about, here is an example. If a hotel is 90% full throughout the entire season, that basically means a new hotel could be built and it wouldn't empty out the other. Leaving more guests opportunities to book rooms, which = more people in the parks. I think Disney has a percentage rate somewhere around the 80% marker. That 80% is across all hotels they own, and that is when Disney knows to build a new resort. Cedar Fair might have an eye on this considering all the work they are doing at Cedar Point resorts. I assume Kings Island could follow this trend.